<HTML>
<BODY BGCOLOR="white">
<PRE>
<FONT color="green">001</FONT>    package org.hackystat.dailyprojectdata.resource.codeissue;<a name="line.1"></a>
<FONT color="green">002</FONT>    <a name="line.2"></a>
<FONT color="green">003</FONT>    import java.util.Map;<a name="line.3"></a>
<FONT color="green">004</FONT>    import java.util.HashMap;<a name="line.4"></a>
<FONT color="green">005</FONT>    import java.util.Set;<a name="line.5"></a>
<FONT color="green">006</FONT>    import java.util.HashSet;<a name="line.6"></a>
<FONT color="green">007</FONT>    import javax.xml.datatype.XMLGregorianCalendar;<a name="line.7"></a>
<FONT color="green">008</FONT>    <a name="line.8"></a>
<FONT color="green">009</FONT>    import org.hackystat.sensorbase.resource.sensordata.jaxb.SensorData;<a name="line.9"></a>
<FONT color="green">010</FONT>    import org.hackystat.utilities.tstamp.Tstamp;<a name="line.10"></a>
<FONT color="green">011</FONT>    <a name="line.11"></a>
<FONT color="green">012</FONT>    /**<a name="line.12"></a>
<FONT color="green">013</FONT>     * Provides a mechanism for generating a "snapshot" for each of several tools. <a name="line.13"></a>
<FONT color="green">014</FONT>     * The "snapshot" is the set of sensor data instances for the given tool with the <a name="line.14"></a>
<FONT color="green">015</FONT>     * latest runtime value. <a name="line.15"></a>
<FONT color="green">016</FONT>     * <a name="line.16"></a>
<FONT color="green">017</FONT>     * To use this tool, create an instance, then add() each sensor data instance of interest<a name="line.17"></a>
<FONT color="green">018</FONT>     * to it. When finished, you can obtain a snapshot for any given tool, which is the set<a name="line.18"></a>
<FONT color="green">019</FONT>     * of sensor data instances associated with that tool with the latest runtime value.<a name="line.19"></a>
<FONT color="green">020</FONT>     * <a name="line.20"></a>
<FONT color="green">021</FONT>     * @author Philip Johnson<a name="line.21"></a>
<FONT color="green">022</FONT>     *<a name="line.22"></a>
<FONT color="green">023</FONT>     */<a name="line.23"></a>
<FONT color="green">024</FONT>    public class MultiToolSnapshot {<a name="line.24"></a>
<FONT color="green">025</FONT>      <a name="line.25"></a>
<FONT color="green">026</FONT>      /** Holds a map from tool to a set containing the latest snapshot of sensor data for this tool.*/<a name="line.26"></a>
<FONT color="green">027</FONT>      private Map&lt;String, Set&lt;SensorData&gt;&gt; tool2SensorData = new HashMap&lt;String, Set&lt;SensorData&gt;&gt;();<a name="line.27"></a>
<FONT color="green">028</FONT>    <a name="line.28"></a>
<FONT color="green">029</FONT>      /**<a name="line.29"></a>
<FONT color="green">030</FONT>       * Create a MultiToolSnapshot.<a name="line.30"></a>
<FONT color="green">031</FONT>       */<a name="line.31"></a>
<FONT color="green">032</FONT>      public MultiToolSnapshot() {<a name="line.32"></a>
<FONT color="green">033</FONT>        // don't do anything here.<a name="line.33"></a>
<FONT color="green">034</FONT>      }<a name="line.34"></a>
<FONT color="green">035</FONT>      <a name="line.35"></a>
<FONT color="green">036</FONT>      /**<a name="line.36"></a>
<FONT color="green">037</FONT>       * Processes the SensorData instance, potentially adding it if its runtime is equal to or greater<a name="line.37"></a>
<FONT color="green">038</FONT>       * than the runtime associated with the stored instances of that tool.<a name="line.38"></a>
<FONT color="green">039</FONT>       * @param data The sensor data instance. <a name="line.39"></a>
<FONT color="green">040</FONT>       */<a name="line.40"></a>
<FONT color="green">041</FONT>      public void add(SensorData data) {<a name="line.41"></a>
<FONT color="green">042</FONT>        String tool = data.getTool();<a name="line.42"></a>
<FONT color="green">043</FONT>        // If our data structure does not already have an entry for tool, make one.<a name="line.43"></a>
<FONT color="green">044</FONT>        if (tool2SensorData.get(tool) == null) {<a name="line.44"></a>
<FONT color="green">045</FONT>          tool2SensorData.put(tool, new HashSet&lt;SensorData&gt;());<a name="line.45"></a>
<FONT color="green">046</FONT>        }<a name="line.46"></a>
<FONT color="green">047</FONT>        <a name="line.47"></a>
<FONT color="green">048</FONT>        // If we don't have any stored sensor data for this tool, then add it and return.<a name="line.48"></a>
<FONT color="green">049</FONT>        if (tool2SensorData.get(tool).isEmpty()) {<a name="line.49"></a>
<FONT color="green">050</FONT>          tool2SensorData.get(tool).add(data);<a name="line.50"></a>
<FONT color="green">051</FONT>          return;<a name="line.51"></a>
<FONT color="green">052</FONT>        }<a name="line.52"></a>
<FONT color="green">053</FONT>        <a name="line.53"></a>
<FONT color="green">054</FONT>        // Otherwise we have stored sensor data for this tool.<a name="line.54"></a>
<FONT color="green">055</FONT>        XMLGregorianCalendar newRuntime = data.getRuntime();<a name="line.55"></a>
<FONT color="green">056</FONT>        XMLGregorianCalendar storedRuntime = getStoredRuntime(tool);<a name="line.56"></a>
<FONT color="green">057</FONT>    <a name="line.57"></a>
<FONT color="green">058</FONT>        // Case 1: new runtime equals stored runtime -&gt; add it. <a name="line.58"></a>
<FONT color="green">059</FONT>        if (Tstamp.equal(newRuntime, storedRuntime)) {<a name="line.59"></a>
<FONT color="green">060</FONT>          tool2SensorData.get(tool).add(data);<a name="line.60"></a>
<FONT color="green">061</FONT>        }<a name="line.61"></a>
<FONT color="green">062</FONT>        // Case 2: new runtime is more recent -&gt; replace with it.<a name="line.62"></a>
<FONT color="green">063</FONT>        else if (Tstamp.greaterThan(newRuntime, storedRuntime)) {<a name="line.63"></a>
<FONT color="green">064</FONT>          tool2SensorData.get(tool).clear();<a name="line.64"></a>
<FONT color="green">065</FONT>          tool2SensorData.get(tool).add(data);<a name="line.65"></a>
<FONT color="green">066</FONT>        }<a name="line.66"></a>
<FONT color="green">067</FONT>        // Case 3: new runtime is older, so don't do anything.<a name="line.67"></a>
<FONT color="green">068</FONT>      }<a name="line.68"></a>
<FONT color="green">069</FONT>      <a name="line.69"></a>
<FONT color="green">070</FONT>      /**<a name="line.70"></a>
<FONT color="green">071</FONT>       * Returns the set of all Tools in this MultiToolSnapshot.<a name="line.71"></a>
<FONT color="green">072</FONT>       * @return The set of all tools.<a name="line.72"></a>
<FONT color="green">073</FONT>       */<a name="line.73"></a>
<FONT color="green">074</FONT>      public Set&lt;String&gt; getTools() {<a name="line.74"></a>
<FONT color="green">075</FONT>        return tool2SensorData.keySet();<a name="line.75"></a>
<FONT color="green">076</FONT>      }<a name="line.76"></a>
<FONT color="green">077</FONT>    <a name="line.77"></a>
<FONT color="green">078</FONT>      /**<a name="line.78"></a>
<FONT color="green">079</FONT>       * Returns the latest snapshot associated with the specified tool.<a name="line.79"></a>
<FONT color="green">080</FONT>       * @param tool The tool name.<a name="line.80"></a>
<FONT color="green">081</FONT>       * @return The snapshot, which could be empty.<a name="line.81"></a>
<FONT color="green">082</FONT>       */<a name="line.82"></a>
<FONT color="green">083</FONT>      public Set&lt;SensorData&gt; getSensorData(String tool) {<a name="line.83"></a>
<FONT color="green">084</FONT>        Set&lt;SensorData&gt; snapshot = tool2SensorData.get(tool);<a name="line.84"></a>
<FONT color="green">085</FONT>        return (snapshot == null) ? new HashSet&lt;SensorData&gt;() : snapshot;<a name="line.85"></a>
<FONT color="green">086</FONT>      }<a name="line.86"></a>
<FONT color="green">087</FONT>      <a name="line.87"></a>
<FONT color="green">088</FONT>      <a name="line.88"></a>
<FONT color="green">089</FONT>      <a name="line.89"></a>
<FONT color="green">090</FONT>      /**<a name="line.90"></a>
<FONT color="green">091</FONT>       * Returns the stored runtime associated with Tool.<a name="line.91"></a>
<FONT color="green">092</FONT>       * @param tool The tool whose stored runtime should be returned.<a name="line.92"></a>
<FONT color="green">093</FONT>       * @return The stored runtime, or null if no entries in the map.<a name="line.93"></a>
<FONT color="green">094</FONT>       */<a name="line.94"></a>
<FONT color="green">095</FONT>      private XMLGregorianCalendar getStoredRuntime(String tool) {<a name="line.95"></a>
<FONT color="green">096</FONT>        Set&lt;SensorData&gt; dataSet = tool2SensorData.get(tool);<a name="line.96"></a>
<FONT color="green">097</FONT>        for (SensorData data : dataSet) {<a name="line.97"></a>
<FONT color="green">098</FONT>          return data.getRuntime();<a name="line.98"></a>
<FONT color="green">099</FONT>        }<a name="line.99"></a>
<FONT color="green">100</FONT>        return null;<a name="line.100"></a>
<FONT color="green">101</FONT>      }<a name="line.101"></a>
<FONT color="green">102</FONT>    <a name="line.102"></a>
<FONT color="green">103</FONT>    }<a name="line.103"></a>




























































</PRE>
</BODY>
</HTML>
